CA2540804A1 - Method and apparatus for reducing metal-oxygen compounds - Google Patents
Method and apparatus for reducing metal-oxygen compounds Download PDFInfo
- Publication number
- CA2540804A1 CA2540804A1 CA002540804A CA2540804A CA2540804A1 CA 2540804 A1 CA2540804 A1 CA 2540804A1 CA 002540804 A CA002540804 A CA 002540804A CA 2540804 A CA2540804 A CA 2540804A CA 2540804 A1 CA2540804 A1 CA 2540804A1
- Authority
- CA
- Canada
- Prior art keywords
- metal
- stage
- reaction
- promoter
- oxygen compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
- C21B13/146—Multi-step reduction without melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/004—Making spongy iron or liquid steel, by direct processes in a continuous way by reduction from ores
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/18—Reducing step-by-step
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Catalysts (AREA)
- Manufacture Of Iron (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to a method of reducing a metal-oxygen compound wherein carbon acts as a reducing agent, comprising in a first reaction stage, passing CO gas into a reaction chamber containing said metal-oxygen compound, under conditions such that CO is converted to solid carbon and carbon dioxide thereby introducing the solid carbon so formed to said metal-oxygen compound, and in a second reaction stage, causing said carbon, which is introduced to the metal-oxygen compound in said first reaction stage, to reduce said metal-oxygen compound, wherein there is present, at least in said second reaction stage, a first promoter material effective to promote the reduction of said metal-oxygen compound, the first promoter material comprising a first promoter metal and/or a compound of a first promoter metal. The invention also relates to an apparatus for carrying out the reduction of a metaloxygen compound wherein carbon acts as a reducing agent.
Claims (26)
1. A method of reducing a metal-oxygen compound wherein carbon acts as a reducing agent, comprising:
in a first reaction stage, passing CO gas into a reaction chamber containing said metal-oxygen compound, under conditions such that CO is converted to solid carbon and carbon dioxide thereby introducing the solid carbon so formed to said metal-oxygen compound, and in a second reaction stage, causing said carbon, which is introduced to the metal-oxygen compound in said first reaction stage, to reduce said metal-oxygen compound, wherein there is present, at least in said second reaction stage, a first promoter material effective to promote the reduction of said metal-oxygen compound, the first promoter material comprising a first promoter metal and/or a compound of a first promoter metal.
in a first reaction stage, passing CO gas into a reaction chamber containing said metal-oxygen compound, under conditions such that CO is converted to solid carbon and carbon dioxide thereby introducing the solid carbon so formed to said metal-oxygen compound, and in a second reaction stage, causing said carbon, which is introduced to the metal-oxygen compound in said first reaction stage, to reduce said metal-oxygen compound, wherein there is present, at least in said second reaction stage, a first promoter material effective to promote the reduction of said metal-oxygen compound, the first promoter material comprising a first promoter metal and/or a compound of a first promoter metal.
2. A method according to claim 1, wherein the method is performed continuously, said first and second reaction stages being performed simultaneously and said metal-oxygen compound being moved from a first reaction region where said first reaction stage takes place to a second reaction region where said second reaction stage takes place.
3. A method according to claim 2, wherein CO gas formed in the second reaction stage is used in said first reaction stage.
4. A method according to any one of the preceding claims, wherein said second reaction stage is performed at a higher temperature than said first reaction stage.
5. A method according to any one of the preceding claims, wherein said first promoter material is said first promoter metal, or a first promoter metal carbide, a first promoter metal hydride or a first promoter metal nitride, or a combination thereof.
6. A method according to any one of the preceding claims, wherein said first promoter material is in powder form.
7. A method according to any one of the preceding claims, wherein said first promoter metal is the same as the metal of said metal-oxygen compound.
8. A method according to any one of the preceding claims, wherein, at least in said first reaction stage, a second promoter material is present, the second promoter material comprising a second promoter metal and/or a compound of a second promoter metal which promotes the conversion of CO to carbon and carbon dioxide.
9. A method according to claim 8, wherein said second promoter material is said second promoter metal, or a second promoter metal carbide, a second promoter metal hydride or a second promoter metal nitride, or a combination thereof.
10. A method according to claim 9, wherein said second promoter material is in powder form.
11. A method according to any one of claims 1 to 10, wherein said metal-oxygen compound is in the form of a conglomerate formed from powder.
12. A method according to any one of claims 1 to 11, wherein said metal-oxygen compound and said first promoter material, and said second promoter material if present, are in the form of conglomerate formed from their powders.
13. A method according to any one of the preceding claims, wherein the metal of said metal-oxygen compound is Fe, Cu, Co, Ni, Ru, Rh, Pd, Pt or Ir.
14. A method according to any one of the preceding claims, wherein said first reaction stage is performed below 650°C.
15. A method according to any one of the preceding claims, wherein the metal-oxygen compound comprises iron-oxygen compound, such as iron oxide and/or iron hydroxide and/or iron carbonate.
16. A method according to any one of the preceding claims, wherein said first promoter metal, and second promoter metal if present, is iron.
17. A method according to claim 15 or 16, wherein said second reaction stage is performed between 550 and 900°C.
18. A method according to any one of the preceding claims, wherein said metal-oxygen compound comprises a mixture of at least two metal-oxygen compounds, wherein the metals in the metal-oxygen compounds are different and wherein each of the metals comprises Fe, Cu, Co, Ni, Ru, Rh, Pd, Pt or Ir.
19. A method according to any one of the preceding claims, carried out in a shaft furnace, a blast furnace, a fluidised bed, a rotary hearth furnace, a rotary kiln furnace, a cyclone furnace or a batch-type furnace.
20. A method according to any one of the preceding claims, wherein a substantially solid reaction product is produced in the second reaction stage and wherein a portion of said reaction product from said second reaction stage is introduced into said first reaction stage.
21. A method according to any one of the preceding claims, wherein gaseous reaction product is extracted and reintroduced into the process.
22. Apparatus for carrying out the reduction of a metal-oxygen compound wherein carbon acts as a reducing agent, comprising:
a first stage reaction chamber adapted to hold a solid charge of the metal-oxygen compound, an inlet to said first reaction chamber for entry of said metal-oxygen compound, a second stage reaction chamber, transport means for transferring the solid charge, following reaction in said first stage reaction chamber, from said first stage reaction chamber into said second stage reaction chamber, means for passage of CO gas from said second stage reaction chamber to said first stage reaction chamber, and a discharge outlet for discharge of substantially solid reaction products from said second stage reaction chamber.
a first stage reaction chamber adapted to hold a solid charge of the metal-oxygen compound, an inlet to said first reaction chamber for entry of said metal-oxygen compound, a second stage reaction chamber, transport means for transferring the solid charge, following reaction in said first stage reaction chamber, from said first stage reaction chamber into said second stage reaction chamber, means for passage of CO gas from said second stage reaction chamber to said first stage reaction chamber, and a discharge outlet for discharge of substantially solid reaction products from said second stage reaction chamber.
23. Apparatus according to claim 22, having an outlet for gaseous reaction product from said first stage reaction chamber and means for reintroducing gaseous reaction product to said second stage reaction chamber.
24. Apparatus according to claim 22 or 23, having means for reintroducing substantially solid reaction product discharged via said discharge outlet to said first stage reaction chamber.
25. Apparatus according to claim 22, 23 or 24, including means for generating hot CO gas to be fed into said second stage reaction chamber.
26. Apparatus according to any one of claims 22 to 25, including a fluidised bed reactor providing the first stage reaction chamber and/or the second stage reaction chamber.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03078074.6 | 2003-10-03 | ||
| EP03078074 | 2003-10-03 | ||
| EP04075552.2 | 2004-02-23 | ||
| EP04075552A EP1568793A1 (en) | 2004-02-23 | 2004-02-23 | Method and apparatus for reducing metal-oxygen compounds |
| PCT/EP2004/011345 WO2005033347A1 (en) | 2003-10-03 | 2004-10-01 | Method and apparatus for reducing metal-oxygen compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2540804A1 true CA2540804A1 (en) | 2005-04-14 |
| CA2540804C CA2540804C (en) | 2010-07-27 |
Family
ID=34424769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2540804A Expired - Fee Related CA2540804C (en) | 2003-10-03 | 2004-10-01 | Method and apparatus for reducing metal-oxygen compounds |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US7591874B2 (en) |
| EP (1) | EP1670959B1 (en) |
| JP (1) | JP4879743B2 (en) |
| KR (1) | KR20060073651A (en) |
| AP (1) | AP1867A (en) |
| AR (1) | AR046416A1 (en) |
| AT (1) | ATE452212T1 (en) |
| AU (1) | AU2004278504B2 (en) |
| BR (1) | BRPI0414866A (en) |
| CA (1) | CA2540804C (en) |
| DE (1) | DE602004024697D1 (en) |
| EG (1) | EG25192A (en) |
| MX (1) | MXPA06003488A (en) |
| NO (1) | NO20061959L (en) |
| NZ (1) | NZ546643A (en) |
| PL (1) | PL379514A1 (en) |
| RU (1) | RU2360982C2 (en) |
| WO (1) | WO2005033347A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007062413B3 (en) * | 2007-12-20 | 2009-09-10 | Conera Process Solutions Gmbh | Process and apparatus for reprocessing CO2-containing exhaust gases |
| JP6428528B2 (en) * | 2015-08-10 | 2018-11-28 | 住友金属鉱山株式会社 | Nickel oxide ore smelting method |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2780537A (en) * | 1952-11-24 | 1957-02-05 | Stelling | Process of treating pulverulent iron oxides |
| US2979396A (en) | 1957-05-31 | 1961-04-11 | Crucible Steel Co America | Method to catalyze the reduction of ores |
| US3637368A (en) | 1968-10-16 | 1972-01-25 | Exxon Research Engineering Co | Increased metallizations of iron ore from fluidized bed processes |
| US3788835A (en) | 1970-12-30 | 1974-01-29 | Exxon Research Engineering Co | Iron ore reduction process(nu-9) |
| NL176956C (en) | 1974-02-18 | 1985-07-01 | Billiton Research Bv | METHOD FOR PREPARING MAGNESIUM. |
| GB1471544A (en) | 1974-10-25 | 1977-04-27 | British Steel Corp | Direct reduction of metallic ores |
| US4053301A (en) * | 1975-10-14 | 1977-10-11 | Hazen Research, Inc. | Process for the direct production of steel |
| US4396423A (en) | 1981-06-22 | 1983-08-02 | Stephens Jr Frank M | Process for recovering iron and zinc from steel making dusts |
| FR2703070B1 (en) | 1993-03-26 | 1995-05-05 | Lorraine Laminage | Iron ore reduction installation using a circulating fluidized bed provided with a device for adjusting the flow of solid materials. |
| US5567224A (en) * | 1995-06-06 | 1996-10-22 | Armco Inc. | Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame |
| JPH09194920A (en) * | 1996-01-12 | 1997-07-29 | Kobe Steel Ltd | Production of low sulfur and high carbon-containing reduced iron |
| JPH09278428A (en) * | 1996-04-10 | 1997-10-28 | Nippon Steel Corp | Production of iron carbide |
| JP3294763B2 (en) * | 1996-06-19 | 2002-06-24 | 昭二 林 | Manufacturing method of iron carbide |
| US5858057A (en) * | 1996-09-25 | 1999-01-12 | Hylsa S.A. De C.V. | Method for producing direct reduced iron with a controlled amount of carbon |
| AT406382B (en) * | 1996-11-06 | 2000-04-25 | Voest Alpine Ind Anlagen | METHOD FOR THE PRODUCTION OF IRON SPONGE BY DIRECTLY REDUCTION OF MATERIAL CONTAINING IRON OXIDE |
| JP2003510455A (en) * | 1997-08-22 | 2003-03-18 | シャーウッド，ウィリアム，ライアン | Direct steelmaking and steelmaking |
| AT407879B (en) | 1999-10-28 | 2001-07-25 | Voest Alpine Ind Anlagen | METHOD FOR DIRECTLY REDUCING IRON OXIDE MATERIALS |
-
2004
- 2004-10-01 PL PL379514A patent/PL379514A1/en unknown
- 2004-10-01 AU AU2004278504A patent/AU2004278504B2/en not_active Ceased
- 2004-10-01 DE DE602004024697T patent/DE602004024697D1/en active Active
- 2004-10-01 JP JP2006530135A patent/JP4879743B2/en not_active Expired - Fee Related
- 2004-10-01 AT AT04790257T patent/ATE452212T1/en active
- 2004-10-01 BR BRPI0414866-5A patent/BRPI0414866A/en not_active Application Discontinuation
- 2004-10-01 MX MXPA06003488A patent/MXPA06003488A/en active IP Right Grant
- 2004-10-01 NZ NZ546643A patent/NZ546643A/en not_active IP Right Cessation
- 2004-10-01 CA CA2540804A patent/CA2540804C/en not_active Expired - Fee Related
- 2004-10-01 EP EP04790257A patent/EP1670959B1/en not_active Not-in-force
- 2004-10-01 RU RU2006114831/02A patent/RU2360982C2/en not_active IP Right Cessation
- 2004-10-01 KR KR1020067008498A patent/KR20060073651A/en active IP Right Grant
- 2004-10-01 AP AP2006003586A patent/AP1867A/en active
- 2004-10-01 US US10/574,466 patent/US7591874B2/en not_active Expired - Fee Related
- 2004-10-01 WO PCT/EP2004/011345 patent/WO2005033347A1/en active Application Filing
- 2004-10-04 AR ARP040103598A patent/AR046416A1/en active IP Right Grant
-
2006
- 2006-03-30 EG EGNA2006000309 patent/EG25192A/en active
- 2006-05-02 NO NO20061959A patent/NO20061959L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| PL379514A1 (en) | 2006-10-02 |
| ATE452212T1 (en) | 2010-01-15 |
| US7591874B2 (en) | 2009-09-22 |
| MXPA06003488A (en) | 2006-06-08 |
| AP2006003586A0 (en) | 2006-04-30 |
| DE602004024697D1 (en) | 2010-01-28 |
| KR20060073651A (en) | 2006-06-28 |
| EP1670959B1 (en) | 2009-12-16 |
| EP1670959A1 (en) | 2006-06-21 |
| AR046416A1 (en) | 2005-12-07 |
| US20070209479A1 (en) | 2007-09-13 |
| CA2540804C (en) | 2010-07-27 |
| BRPI0414866A (en) | 2006-11-28 |
| NZ546643A (en) | 2008-10-31 |
| AP1867A (en) | 2008-07-14 |
| JP2007507608A (en) | 2007-03-29 |
| RU2360982C2 (en) | 2009-07-10 |
| WO2005033347A1 (en) | 2005-04-14 |
| AU2004278504B2 (en) | 2009-09-17 |
| EG25192A (en) | 2011-10-25 |
| NO20061959L (en) | 2006-05-02 |
| AU2004278504A1 (en) | 2005-04-14 |
| RU2006114831A (en) | 2007-11-20 |
| JP4879743B2 (en) | 2012-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20131001 |